%0 Journal Article
%T Quantum torsors with fewer axioms
%A Peter Schauenburg
%J Mathematics
%D 2003
%I arXiv
%X We give a definition of a noncommutative torsor by a subset of the axioms previously given by Grunspan. We show that noncommutative torsors are an equivalent description of Hopf-Galois objects (without specifying the Hopf algebra). In particular, this shows that the endomorphism of a torsor featuring in Grunspan's definition is redundant.
%U http://arxiv.org/abs/math/0302003v1